Class Solution


  • public class Solution
    extends Object
    374 - Guess Number Higher or Lower.

    Easy

    We are playing the Guess Game. The game is as follows:

    I pick a number from 1 to n. You have to guess which number I picked.

    Every time you guess wrong, I will tell you whether the number I picked is higher or lower than your guess.

    You call a pre-defined API int guess(int num), which returns 3 possible results:

    • -1: The number I picked is lower than your guess (i.e. pick < num).
    • 1: The number I picked is higher than your guess (i.e. pick > num).
    • 0: The number I picked is equal to your guess (i.e. pick == num).

    Return the number that I picked.

    Example 1:

    Input: n = 10, pick = 6

    Output: 6

    Example 2:

    Input: n = 1, pick = 1

    Output: 1

    Example 3:

    Input: n = 2, pick = 1

    Output: 1

    Example 4:

    Input: n = 2, pick = 2

    Output: 2

    Constraints:

    • 1 <= n <= 231 - 1
    • 1 <= pick <= n
    • Constructor Detail

      • Solution

        public Solution()
    • Method Detail

      • guessNumber

        public int guessNumber​(int n)